CN202495546U - Lithium battery formation clamp - Google Patents
Lithium battery formation clamp Download PDFInfo
- Publication number
- CN202495546U CN202495546U CN2012200894388U CN201220089438U CN202495546U CN 202495546 U CN202495546 U CN 202495546U CN 2012200894388 U CN2012200894388 U CN 2012200894388U CN 201220089438 U CN201220089438 U CN 201220089438U CN 202495546 U CN202495546 U CN 202495546U
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- Prior art keywords
- battery
- lithium battery
- vacuum source
- lithium
- interface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model belongs to the technical field of lithium battery production equipment and particularly relates to a lithium battery formation clamp. The lithium battery formation clamp comprises a pressurization fixing mechanism for placing a battery and a vacuum source. The pressurization fixing mechanism and the vacuum source are connected through a connecting and fixing mechanism. Compared with the prior art, the lithium battery formation clamp is capable of ensuring the fact that stable negative pressure exists inside the battery during a whole formation process, and ensuring an interface of a battery electrode is closely attached to an interface of a diaphragm. During a charge-discharge process, lithium ions are capable of leaving smoothly through electrolyte and the diaphragm. Meanwhile, the pressurization fixing mechanism has good reshaping effect on the electrode during the whole technological process. Thus, the fact that the interface of the battery electrode is closely attached to the interface of the diaphragm is ensured, the risk of lithium precipitation in a charge process is removed, battery performance consistency, cycle life and safety performance are improved, and the lithium battery formation clamp helps batteries to be packs, prolongs service life and improves safety of battery packs.
Description
Technical field
The utility model belongs to lithium battery production equipment technical field, relates in particular to a kind of lithium battery and changes into anchor clamps.
Background technology
Enhancing along with development of modern society and people's environmental protection consciousness; The application of lithium battery has no longer only limited to mobile devices such as mobile phone, digital camera, video camera, portable DVD player and notebook computer, and begins to expand to the electrokinetic cell direction.Electrokinetic cell is mainly used in fields such as electric automobile (comprising hybrid power and pure electric power) and electric power energy storage.
Because the field of lithium battery applications and people's life are closely bound up, so people have expressed special concern to its security performance.Lithium battery generally comprises electric core, is used to hold the pack case of said electric core and is poured into pack case and the electrolyte of electric in-core, electric core be by positive plate, negative plate and be interval in positive plate and negative plate between barrier film.
The manufacture process of lithium battery generally comprises following operation: stir, be coated with, cold pressing, cut-parts, coiling (or lamination), fluid injection, change into, capacity etc., wherein, changing into is a very crucial operation.In this operation, electrolyte can form one deck solid electrolyte film (SEI film) on the surface of negative pole, and the SEI film can play a protective role by the anticathode material, prevents that its structure from caving in.If the SEI film is fine and close inadequately; Then in the use of battery, along with the carrying out of circulation, subsiding to a certain degree will take place in the structure of the active material in the negative pole; Make the lithium ion of coming be difficult to get into negative plate inside from the positive plate migration; Thereby (promptly analysing lithium) separated out on the surface at negative plate, forms Li dendrite, and this will cause the variation of the cycle performance of battery.And the existence of Li dendrite possibly puncture barrier film, causes the battery internal short-circuit, causes safety problem.
In view of this, necessaryly provide a kind of lithium battery to change into anchor clamps,, improve the security performance and the cycle life of lithium battery to prevent the lithium of analysing on negative plate surface.
The utility model content
The purpose of the utility model is: to the deficiency of prior art, and provide a kind of lithium battery to change into anchor clamps, to prevent the lithium of analysing on negative plate surface, improve the security performance and the cycle life of lithium battery.
In order to achieve the above object, the utility model adopts following technical scheme:
A kind of lithium battery changes into anchor clamps, comprises the pressurization fixed mechanism and the vacuum source that are used to place battery, and said pressurization fixed mechanism connects through being connected fixed mechanism with said vacuum source.
Wherein, The pressurization fixed mechanism is fixed after battery surface is applied certain pressure; It can provide the steady pressure of accords with production process conditions, and (battery unit are pressurized pressure limit 0.05Mpa～2.0Mpa) is to guarantee battery interface stable between electrode and barrier film in formation process; Vacuum source is in order to guaranteeing stable vacuum environment, its can provide the accords with production process conditions stable vacuum degree (vacuum ranges for-10kPa～-101kPa); Connect fixed mechanism in order to guarantee that vacuum source is connected with the good of battery, reduce the vacuum leak risk, and effectively prevent the liquid extraction of inside battery.
Change into a kind of improvement of anchor clamps as the utility model lithium battery, said vacuum source also is connected with vacuum source branch with said the connection between the fixed mechanism.A plurality of branches sealing according to capacity of equipment and production technology formulation is good, can reduce vacuum source fluctuation and vacuum pump power loss.
Change into a kind of improvement of anchor clamps as the utility model lithium battery, also be connected with the collection filtration system between said vacuum source branch and the said vacuum source.Collect filtration system in order to gas that produces in the formation process and residual liquid centralized collection are filtered reprocessing; This system can prevent the extraction of inside battery liquid; And the gas to changing into generation effectively filters, and can reach the reduction environmental pollution after the gas after the filtration is discharged and require even reach zero to pollute.
Change into a kind of improvement of anchor clamps as the utility model lithium battery, the pressurization fixed mechanism comprises train wheel bridge, and (and lower plate, said train wheel bridge is spirally connected with lower plate and is connected.
Change into a kind of improvement of anchor clamps as the utility model lithium battery, said vacuum source branch is provided with a plurality of connectors.The effect of vacuum source branch and connector is that collecting filtration system with one is separated into a plurality of branches, makes each collect filtration system and can handle the battery in a plurality of the changing into simultaneously.
Change into a kind of improvement of anchor clamps as the utility model lithium battery, said collection filtration system is connected through pipeline with said vacuum source branch.
With respect to prior art; The utility model can guarantee that negative pressure is stablized in inner existence in the whole formation process of battery, guarantees that the interface fits tightly between battery electrode and barrier film, in charge and discharge process; Lithium ion can take off embedding smoothly through electrolyte, barrier film; And the pressurization fixed mechanism has shaping operation preferably to electrode in whole technical process, thereby guarantees that between battery electrode and barrier film fit closely in the interface, solves to analyse the lithium risk in the charging process; Improve battery performance consistency, cycle life and security performance, help battery in groups with improve battery pack life-span and safety.
Description of drawings
Below in conjunction with accompanying drawing and embodiment, the utility model and useful technique effect thereof are elaborated, wherein:
Fig. 1 is the structural representation of the utility model.
Embodiment
See also Fig. 1, a kind of lithium battery of the utility model changes into anchor clamps, comprises the pressurization fixed mechanism 5 and vacuum source 1 that are used to place battery 6, and said pressurization fixed mechanism 5 connects through being connected fixed mechanism 4 with said vacuum source 1.
Wherein, said vacuum source 1 also is connected with vacuum source branch 3 with said the connection between the fixed mechanism 4.
Also be connected with between said vacuum source branch 3 and the said vacuum source 1 and collect filtration system 2.
Pressurization fixed mechanism 5 comprises train wheel bridge 51 and lower plate 52, and said train wheel bridge 51 is spirally connected with lower plate 52 and is connected.
Said vacuum source branch 3 is provided with a plurality of connectors 31.
Said collection filtration system 2 is connected through pipeline 7 with said vacuum source branch 3.
During use; At first battery 6 is put between the train wheel bridge 51 and lower plate 52 of pressurization fixed mechanism 5; Pass through screw fixedly train wheel bridge 51 and lower plate 52 then, so that battery 6 is imposed certain pressure, to keep contact interface closely between electrode in the assurance battery 6 and barrier film; Open vacuum source 1, collection filtration system 2 and vacuum source branch 3 make to keep certain vacuum degree in the battery 6 then.Battery 6 is accomplished under the acting in conjunction of negative pressure and impressed pressure changed into operation.
With respect to prior art; The utility model lithium battery changes into anchor clamps makes the internal interface of battery 6 closely contact, and makes the apparent size of battery 6 stable, and stable vacuum source continues to vacuumize to the battery in the formation process 6; Assurance changes into aerogenesis and in time is extracted into battery 6 outsides; Thereby effectively improve interface between electrode and the barrier film in the battery 6, effectively solve the lithium problem of analysing, improve the consistency of performance of battery 6; All there is very big raising in life-span to fail safe, stability and the battery 6 of battery 6, help battery 6 in groups with improve battery pack life-span and safety.
According to the announcement and the instruction of above-mentioned specification, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the embodiment that discloses and describe above the utility model is not limited to is in the protection range of the claim that also should fall into the utility model to some modifications and the change of the utility model.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the utility model is not constituted any restriction.
Claims (6)
1. a lithium battery changes into anchor clamps, it is characterized in that: comprise the pressurization fixed mechanism (5) and the vacuum source (1) that are used to place battery (6), said pressurization fixed mechanism (5) connects through being connected fixed mechanism (4) with said vacuum source (1).
2. lithium battery according to claim 1 changes into anchor clamps, it is characterized in that: said vacuum source (1) also is connected with vacuum source branch (3) with said the connection between the fixed mechanism (4).
3. lithium battery according to claim 2 changes into anchor clamps, it is characterized in that: also be connected with between said vacuum source branch (3) and the said vacuum source (1) and collect filtration system (2).
4. lithium battery according to claim 1 changes into anchor clamps, it is characterized in that: pressurization fixed mechanism (5) comprises train wheel bridge (51) and lower plate (52), and said train wheel bridge (51) is spirally connected with lower plate (52) and is connected.
5. lithium battery according to claim 2 changes into anchor clamps, it is characterized in that: said vacuum source branch (3) is provided with a plurality of connectors (31).
6. lithium battery according to claim 3 changes into anchor clamps, it is characterized in that: said collection filtration system (2) is connected through pipeline (7) with said vacuum source branch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894388U CN202495546U (en) | 2012-03-12 | 2012-03-12 | Lithium battery formation clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200894388U CN202495546U (en) | 2012-03-12 | 2012-03-12 | Lithium battery formation clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202495546U true CN202495546U (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200894388U Expired - Lifetime CN202495546U (en) | 2012-03-12 | 2012-03-12 | Lithium battery formation clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202495546U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953181A (en) * | 2015-05-06 | 2015-09-30 | 中国科学院青岛生物能源与过程研究所 | Process for inhibiting air expansion of lithium ion battery by using lithium titanate as negative electrode |
| CN106997961A (en) * | 2016-01-26 | 2017-08-01 | 郑州比克电池有限公司 | The spacing battery formation clamp of lithium ion polymer battery |
-
2012
- 2012-03-12 CN CN2012200894388U patent/CN202495546U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953181A (en) * | 2015-05-06 | 2015-09-30 | 中国科学院青岛生物能源与过程研究所 | Process for inhibiting air expansion of lithium ion battery by using lithium titanate as negative electrode |
| CN104953181B (en) * | 2015-05-06 | 2017-12-12 | 中国科学院青岛生物能源与过程研究所 | A kind of technique suppressed using lithium titanate as the lithium ion battery flatulence of negative pole |
| CN106997961A (en) * | 2016-01-26 | 2017-08-01 | 郑州比克电池有限公司 | The spacing battery formation clamp of lithium ion polymer battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121017 |